It's common knowledge that the 2 master ninjas in America (that's right there's just 2, the rest are all posers) wear white t-shirts with blatant ninja logos and sayings on them all the time. Why? Because people will think that they're fake ninjas! That's the best disguise in the whole world!
So you put on your cheesy white ninja t-shirt that you bought online, and you talk loud in public about how sweet ninjas are, and of course you'll be seen as a poser. Then when you flip out and kill someone in broad daylight, then bust out your guitar and start wailing like all real ninjas do after they flip out and kill someone, who'll be laughing then?
You! You silly looking nerd with the white ninja t-shirt.
I'm so pumped up right now talking about ninjas that I wanna go somewhere and flip out and punch someone in the face. Because ninjas can do that. They just punch people for no reason at all. And that's sweet.